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    While having our dinner, . A. the doorbell rang B. we heard the doorbell rang C. we heard the doorbell ringing D. the doorbell was heard to ring 【查看更多】

     

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    While having our dinner, _____ .

    [　　]

    A. the doorbell rang

    B. we heard the doorbell rang

    C. we heard the doorbell ringing

    D. the doorbell was heard to ring

    查看答案和解析>>

    While having our dinner, _____ .

    [　　]

    A. the doorbell rang

    B. we heard the doorbell rang

    C. we heard the doorbell ringing

    D. the doorbell was heard to ring

    查看答案和解析>>


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